Hooker BlackHeart Transmission Crossmember

94-98 Mustang Engine Swap Transmission Crossmember* LS-Powerglide, TH350, TKO & 4L60-4L70 Coyote- Powerglide, TKO & TR-3550

PART# 71222012HKR

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Hooker Blackheart has quickly become the leader in engine swap system design and we are excited to announce new LS and Coyote engine swap products for 1994-2004 Ford Mustangs. This Hooker Blackheart engine swap transmission crossmember is designed to be used with Hooker Blackheart engine mount adapter plates or mounting brackets designed for vehicles that are equipped with stock OE (1996-2004 only) or specific AJE, Team Z or Maximum Motorsports aftermarket engine K-members. Provides for LS swap installation of a Powerglide, TH350, TKO or 4L60-4L70 transmission using the following adapters: Powerglide or TH350 transmission -71222014HKR TKO or 4L60-4L70 transmission -71223012HKR Provides for Coyote swap installation of a Powerglide, TKO or TR-3550 transmission using the following adapters: TKO or TR-3550 transmission -71223012HKR


  • Comprehensively designed as part of the Hooker Blackheart LS and Coyote engine swap systems for 1994-1998 Ford Mustangs; provides maximized level of inter-component compatibility
  • Designed for use with Hooker Blackheart 71221011HKR engine adapter plates in LS swaps using the stock 1996-2004 OE K-member
  • Designed for use with Hooker Blackheart engine mounting brackets in Coyote swaps using AJE MU-40-UM and Team Z TZM-KM-SWAP K-members
  • Designed for use with Prothane™ 6-504 engine mounts in Coyote swaps using Maximum Motorsports MMKM-2/MMKM-2.1 K-members
  • High-arch passages provide maximum available exhaust ground clearance
  • Design geometry replicates stock Ford drivetrain height, inclination angle and offset for optimized vehicle and component compatibility
  • Powder coated steel construction provides an attractive, strong and stiff transmission mounting solution
  • Hardware included
  • Manufacturer’s limited lifetime warranty


Application94-98 Mustang LS Swap
BrandHooker BlackHeart
Emission Code5
FinishBlack Powdercoated
Product TypeCrossmember
Transmission TypePowerglide, TH350, TKO & 4L60-4L70
Part Number71222012HKR



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

*All transmissions covered require the use of an adapter, as listed in the overview below


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